1974 Citroen SM vs. 1981 Fiat 127
To start off, 1981 Fiat 127 is newer by 7 year(s). Which means there will be less support and parts availability for 1974 Citroen SM. In addition, the cost of maintenance, including insurance, on 1974 Citroen SM would be higher. At 2,670 cc (6 cylinders), 1974 Citroen SM is equipped with a bigger engine. In terms of performance, 1974 Citroen SM (170 HP @ 5500 RPM) has 126 more horse power than 1981 Fiat 127. (44 HP @ 5250 RPM). In normal driving conditions, 1974 Citroen SM should accelerate faster than 1981 Fiat 127. With that said, vehicle weight also plays an important factor in acceleration. 1974 Citroen SM weights approximately 615 kg more than 1981 Fiat 127. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1974 Citroen SM (237 Nm @ 4000 RPM) has 161 more torque (in Nm) than 1981 Fiat 127. (76 Nm @ 3000 RPM). This means 1974 Citroen SM will have an easier job in driving up hills or pulling heavy equipment than 1981 Fiat 127.
Compare all specifications:
| 1974 Citroen SM | 1981 Fiat 127 | |
| Make | Citroen | Fiat |
| Model | SM | 127 |
| Year Released | 1974 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 2670 cc | 1290 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 170 HP | 44 HP |
| Engine RPM | 5500 RPM | 5250 RPM |
| Torque | 237 Nm | 76 Nm |
| Torque RPM | 4000 RPM | 3000 RPM |
| Engine Bore Size | 87.1 mm | 76.1 mm |
| Engine Stroke Size | 75 mm | 71.5 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Front |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1450 kg | 835 kg |
| Vehicle Length | 4900 mm | 3930 mm |
| Vehicle Width | 1850 mm | 1550 mm |
| Vehicle Height | 1330 mm | 1430 mm |
| Wheelbase Size | 2960 mm | 2230 mm |
